The River to Ridge Trail is part of the Bay Area Ridge Trail and is a 2.5-mile one-way connectivity trail connecting Kennedy Park with Skyline Park. Skyline is fee based so either have the associated fee or your yearly pass with you when utilizing the trail. Open to hikers, bikers and equestrians the trail threads between Syar Quarry and Napa State Hospital. Parking can be found at Kennedy Park or at Skyline.